EOF Exception reading Blobs

[sjakiePP]

Hello,

In my application I get an EOF Exceptoin when I try to read a Blob. Here's the code fragment:

Blob blob = null;
ObjectInputStream oin = null;
Object object1 = null;
java.rmi.MarshalledObject object2 = null;
Object object3 = null;
object1 = oin.readObject(); //eof exception
oin.close();
object2 = (java.rmi.MarshalledObject) object1;
object3 = object2.get();

The size of the blobs varies around 600. Most of the times this code works.

What is causing this exception to occur? Could it be a problem with the database? The blobs are not stored proberly or is there a maximum amout of data that can be read with read object?

Thanks in advance
Sjakie

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[stefanwagner]

I'm not experienced in blobs, rmi and serialisation.
But when oin is null:
[java]ObjectInputStream oin = null;
Object object1 = null;
object1 = oin.readObject(); //eof exception[/java]
how shall it be possible to call readObject () for it?
I'm surprised not to see a NullPointer, but eof-Exception.

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[sjakiePP]

Sorry, copy and past error on my side.

Blob blob = null;
ObjectInputStream oin = null;
Object object1 = null;
java.rmi.MarshalledObject object2 = null;
Object object3 = null;

blob = rs.getBlob(12); //from resultset
oin = new ObjectInputStream(blob.getBinaryStream());
object1 = oin.readObject(); //eof exception

oin.close();

object2 = (java.rmi.MarshalledObject) object1;
object3 = object2.get();

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Yes, the world is full of strange people.